package com.usian.wemedia.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.usian.model.admin.pojos.AdUser;
import com.usian.model.common.dtos.ResponseResult;
import com.usian.model.common.enums.AppHttpCodeEnum;
import com.usian.model.media.dtos.WmUserDto;
import com.usian.model.media.pojos.WmUser;
import com.usian.utils.common.AppJwtUtil;
import com.usian.wemedia.mapper.WmUserMapper;
import com.usian.wemedia.service.WmUserService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.List;

@Service
public class WmUserServiceImpl extends ServiceImpl<WmUserMapper, WmUser> implements WmUserService {


    @Override
    public List<WmUser> findByName(String name) {
        if(StringUtils.isNotBlank(name)){
            LambdaQueryWrapper<WmUser> lambdaQueryWrapper =new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(WmUser::getName,name);
            return list(lambdaQueryWrapper);
        }
        return null;
    }

    @Override
    public ResponseResult login(WmUserDto dto) {

        //1:参数校验
        if(StringUtils.isBlank(dto.getName())||StringUtils.isBlank(dto.getPassword())){
            return  ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //2:生成token
        QueryWrapper<WmUser> wrapper =new QueryWrapper<>();
        wrapper.lambda().eq(WmUser::getName,dto.getName());

        List<WmUser> userList = list(wrapper);
        if(userList !=null && userList.size()==1 ){
            WmUser user = userList.get(0);

            //用户输入的密码 +数据库的盐值  重新生成一个pws 的加密串
            String pwd = DigestUtils.md5DigestAsHex(( dto.getPassword()+ user.getSalt()).getBytes());

            if(user.getPassword().equals(pwd)){
                //输入的密码一样   token
                //通过jwt  生成token
                String token = AppJwtUtil.getToken(user.getId().longValue());

                HashMap<String,Object> map =new HashMap<>();
                map.put("token",token);
                user.setPassword("");
                user.setSalt("");
                map.put("user",user);
                return ResponseResult.okResult(map);

            }else{
                return  ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
            }
        }else{
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
    }


}
